Period
to 20 May 2018

The following table provides summary statistics for contract job vacancies advertised in Essex with a requirement for TDD skills. Included is a benchmarking guide to the contractor rates offered in vacancies that have cited TDD over the 6 months to 20 May 2018 with a comparison to the same period in the previous 2 years.

Note that daily and hourly rates are treated separately in these statistics. When calculating contractor rate percentiles, daily rates are never derived from quoted hourly rates or vice versa.

Test-Driven Development (TDD)
6 months to
20 May 2018
Same period 2017 Same period 2016
Rank 6 3 26
Rank change year-on-year -3 +23 -8
Contract jobs citing TDD 137 208 62
As % of all contract IT jobs advertised in Essex 20.12% 25.46% 6.67%
As % of the Processes & Methodologies category 22.91% 28.38% 7.90%
Number of daily rates quoted 124 155 49
Essex median daily rate £525 £463 £400
Median daily rate % change year-on-year +13.51% +15.63% -
10th Percentile £425 £275 £236
90th Percentile £600 £592 £584
East of England median daily rate £513 £465 £425
% change year-on-year +10.22% +9.41% +6.25%
Number of hourly rates quoted 2 16 3
Essex median hourly rate £70.00 £39.00 £30.50
Median hourly rate % change year-on-year +79.49% +27.87% -15.28%
10th Percentile £65.00 £35.00 £27.05
90th Percentile £75.00 £63.75 £34.95
East of England median hourly rate £70.00 £39.00 £30.50
% change year-on-year +79.49% +27.87% -15.28%

TDD is in the Processes and Methodologies category. The following table is for comparison with the above and provides summary statistics for all contract job vacancies advertised in Essex with a requirement for process or methodology skills.

All Process and Methodology Skills
Essex
Contract vacancies with a requirement for process or methodology skills 598 733 785
As % of all contract IT jobs advertised in Essex 87.81% 89.72% 84.50%
Number of daily rates quoted 371 490 418
Essex median daily rate £500 £425 £400
Median daily rate % change year-on-year +17.65% +6.25% +3.90%
10th Percentile £300 £256 £229
90th Percentile £625 £575 £575
East of England median daily rate £450 £420 £413
% change year-on-year +7.14% +1.82% +3.13%
Number of hourly rates quoted 28 55 127
Essex median hourly rate £34.02 £36.00 £19.00
Median hourly rate % change year-on-year -5.50% +89.47% -47.22%
10th Percentile £15.53 £16.00 £15.00
90th Percentile £75.00 £47.00 £45.40
East of England median hourly rate £17.50 £33.00 £27.50
% change year-on-year -46.97% +20.00% +10.00%

TDD
Job Vacancy Trend in Essex

Job postings citing TDD as a percentage of all IT jobs advertised in Essex.

Job vacancy trend for TDD in Essex

TDD
Contractor Daily Rate Trend in Essex

This chart provides the 3-month moving average for daily rates quoted in contract jobs citing TDD in Essex.

Contractor daily rate trend for TDD in Essex

TDD
Contractor Daily Rate Histogram in Essex

The daily rate distribution of IT jobs citing TDD in Essex over the 6 months to 20 May 2018.

Contractor daily rate histogram for TDD in Essex

TDD
Contractor Hourly Rate Trend in Essex

This chart provides the 3-month moving average for contractor hourly rates quoted in IT jobs citing TDD in Essex.

Contractor hourly rate trend for TDD in Essex

TDD
Contract Job Locations in Essex

The table below looks at the demand and provides a guide to the median contractor rates quoted in IT jobs citing TDD within the Essex region over the 6 months to 20 May 2018. The 'Rank Change' column provides an indication of the change in demand within each location based on the same 6 month period last year.

Location Rank Change
on Same Period
Last Year
Matching
Contract
IT Job Ads
Median
Daily Rate
Past 6 Months
Median Daily Rate
% Change
on Same Period
Last Year
Live
Job
Vacancies
Southend-on-Sea -8 25 £513 +3.54% 1
Brentwood -2 8 £475 +79.25% 3
Basildon +4 4 £488 - 1
Harlow - 3 £475 - 1
TDD
East of England

For the 6 months to 20 May 2018, IT contractor jobs citing TDD also mentioned the following skills in order of popularity. The figures indicate the absolute number co-occurrences and as a proportion of all contract job ads across the Essex region with a requirement for TDD.

1 118 (86.13%) Agile Software Development
2 79 (57.66%) Java
3 78 (56.93%) Web Services
3 78 (56.93%) SOA
4 74 (54.01%) SOAP
5 73 (53.28%) Manufacturing
5 73 (53.28%) Greenfield Project
6 72 (52.55%) XML
6 72 (52.55%) RESTful
7 68 (49.64%) Marketing
7 68 (49.64%) JSON
8 67 (48.91%) Digital Marketing
8 67 (48.91%) SAP
8 67 (48.91%) Business Intelligence
8 67 (48.91%) Electronics
8 67 (48.91%) Telecoms
8 67 (48.91%) Finance
8 67 (48.91%) Programme Management
9 63 (45.99%) Middleware
10 60 (43.80%) Scrum
11 57 (41.61%) Oracle
12 53 (38.69%) Maven
13 52 (37.96%) WSO2
14 51 (37.23%) Oracle SOA Suite
15 47 (34.31%) Continuous Integration
16 46 (33.58%) Mule
16 46 (33.58%) Oracle Service Bus
17 44 (32.12%) Apache Camel
18 43 (31.39%) Jenkins
19 42 (30.66%) XPath

TDD
Co-occurring IT Skills in Essex by Category

The follow tables expand on the table above by listing co-occurrences grouped by category. The same job type, locality and period is covered with up to 20 co-occurrences shown in each of the following categories:

Application Platforms
1 51 (37.23%) Oracle SOA Suite
2 46 (33.58%) Mule
2 46 (33.58%) Oracle Service Bus
3 15 (10.95%) JBoss
4 9 (6.57%) Apache
5 4 (2.92%) Cloud Foundry
5 4 (2.92%) Confluence
5 4 (2.92%) WebSphere
6 3 (2.19%) WebLogic
7 2 (1.46%) Adobe Experience Manager
8 1 (0.73%) CMS
Applications
1 4 (2.92%) Microsoft Project
Business Applications
1 1 (0.73%) IBM Operational Decision Manager
Cloud Services
1 12 (8.76%) GitHub
2 7 (5.11%) Amazon AWS
3 2 (1.46%) Microsoft Azure
4 1 (0.73%) Google Analytics
Communications & Networking
1 18 (13.14%) HTTP
2 10 (7.30%) SSL
2 10 (7.30%) TCP/IP
3 4 (2.92%) Internet
Database & Business Intelligence
1 15 (10.95%) Relational Database
2 8 (5.84%) Geospatial Data
2 8 (5.84%) GIS
3 6 (4.38%) SQL Server
4 4 (2.92%) JasperReports
4 4 (2.92%) RDBMS
5 3 (2.19%) MySQL
5 3 (2.19%) NoSQL
6 1 (0.73%) WebFOCUS
Development Applications
1 53 (38.69%) Maven
2 43 (31.39%) Jenkins
3 28 (20.44%) Git (software)
4 26 (18.98%) JUnit
5 22 (16.06%) SoapUI
6 20 (14.60%) Selenium
7 17 (12.41%) Subversion
8 15 (10.95%) Gradle
9 14 (10.22%) Cucumber
9 14 (10.22%) Zephyr
10 12 (8.76%) JIRA
11 11 (8.03%) Calabash
12 8 (5.84%) CruiseControl
12 8 (5.84%) FishEye
12 8 (5.84%) Hudson
12 8 (5.84%) TeamCity
13 7 (5.11%) JMeter
14 6 (4.38%) Bitbucket
15 5 (3.65%) Ant
16 4 (2.92%) ClearQuest
General
1 73 (53.28%) Manufacturing
2 68 (49.64%) Marketing
3 67 (48.91%) Electronics
3 67 (48.91%) Finance
3 67 (48.91%) Telecoms
4 4 (2.92%) Automotive
Job Titles
1 74 (54.01%) Developer
2 46 (33.58%) Integration Developer
3 34 (24.82%) Senior Developer
4 22 (16.06%) Java Developer
4 22 (16.06%) SOA Developer
5 16 (11.68%) Agile Developer
6 15 (10.95%) Analyst
6 15 (10.95%) Lead Developer
7 11 (8.03%) Android Developer
7 11 (8.03%) Senior Agile Developer
8 10 (7.30%) Business Analyst
8 10 (7.30%) Scrum Master
8 10 (7.30%) SOA Analyst
8 10 (7.30%) Technical Analyst
8 10 (7.30%) Technical Business Analyst
9 9 (6.57%) Tester
10 8 (5.84%) Automation Tester
10 8 (5.84%) DevOps Engineer
10 8 (5.84%) Lead Java Developer
11 5 (3.65%) Senior Automation Tester
Libraries, Frameworks & Software Standards
1 78 (56.93%) Web Services
2 74 (54.01%) SOAP
3 72 (52.55%) RESTful
3 72 (52.55%) XML
4 68 (49.64%) JSON
5 63 (45.99%) Middleware
6 44 (32.12%) Apache Camel
7 42 (30.66%) Swagger
7 42 (30.66%) WireMock
7 42 (30.66%) XSLT
8 20 (14.60%) REST
9 17 (12.41%) HTML
10 14 (10.22%) Spring
11 13 (9.49%) J2EE
12 12 (8.76%) Android SDK
13 10 (7.30%) Core Animation
13 10 (7.30%) Core Data
13 10 (7.30%) JSON Schema
14 9 (6.57%) CSS
14 9 (6.57%) Hibernate
Miscellaneous
1 73 (53.28%) Greenfield Project
2 10 (7.30%) Animation
3 7 (5.11%) Mobile App
4 5 (3.65%) Enterprise Software
5 4 (2.92%) Client/Server
5 4 (2.92%) Foreign Exchange (FX)
6 3 (2.19%) N-Tier
6 3 (2.19%) Virtual Team
7 2 (1.46%) Analytical Skills
7 2 (1.46%) Self-Motivation
8 1 (0.73%) Clustering
8 1 (0.73%) Replication
8 1 (0.73%) Web 2.0
Operating Systems
1 13 (9.49%) Android
2 11 (8.03%) Linux
3 6 (4.38%) Unix
4 5 (3.65%) Red Hat Enterprise Linux
4 5 (3.65%) Windows
5 3 (2.19%) Mac OS X
5 3 (2.19%) Windows 10
6 1 (0.73%) Solaris
6 1 (0.73%) Ubuntu
Processes & Methodologies
1 118 (86.13%) Agile Software Development
2 78 (56.93%) SOA
3 67 (48.91%) Business Intelligence
3 67 (48.91%) Digital Marketing
3 67 (48.91%) Programme Management
4 60 (43.80%) Scrum
5 47 (34.31%) Continuous Integration
6 33 (24.09%) Kanban
7 29 (21.17%) DevOps
8 28 (20.44%) Test Automation
9 18 (13.14%) BDD
9 18 (13.14%) Configuration Management
9 18 (13.14%) Pair Programming
10 16 (11.68%) API Design
10 16 (11.68%) Coaching
10 16 (11.68%) Open Source
10 16 (11.68%) User Stories
11 15 (10.95%) Deployment Automation
12 14 (10.22%) Mentoring
12 14 (10.22%) MVC
Programming Languages
1 79 (57.66%) Java
2 42 (30.66%) XPath
3 23 (16.79%) JavaScript
4 17 (12.41%) C
5 11 (8.03%) SQL
6 10 (7.30%) Java 8
7 6 (4.38%) Groovy
8 4 (2.92%) Perl
8 4 (2.92%) PL/SQL
9 2 (1.46%) Bash Shell
9 2 (1.46%) Ruby
10 1 (0.73%) C++
10 1 (0.73%) Kotlin
10 1 (0.73%) Python
10 1 (0.73%) Scala
Qualifications
1 17 (12.41%) Security Cleared
2 14 (10.22%) SC Cleared
3 7 (5.11%) ISEB
4 3 (2.19%) ISEB Practitioner
Quality Assurance & Compliance
1 7 (5.11%) QA
System Software
1 9 (6.57%) Active Directory
2 5 (3.65%) Docker
Systems Management
1 12 (8.76%) Ansible
2 11 (8.03%) Opscode Chef
2 11 (8.03%) Puppet
3 6 (4.38%) HP ALM
4 3 (2.19%) Terraform
5 2 (1.46%) HP Quality Center
Vendors
1 67 (48.91%) SAP
2 57 (41.61%) Oracle
3 52 (37.96%) WSO2
4 8 (5.84%) Atlassian
5 7 (5.11%) HP
6 6 (4.38%) Adobe
7 5 (3.65%) Google
8 4 (2.92%) IBM
9 3 (2.19%) Talend
10 2 (1.46%) Microsoft
11 1 (0.73%) AppDynamics
11 1 (0.73%) CA Agile Central
11 1 (0.73%) Omniture